Intelligent power distribution cabinet and monitoring method thereof

Abstract

The invention discloses an intelligent power distribution cabinet and a monitoring method thereof, and belongs to the technical field of power distribution cabinets, the intelligent power distribution cabinet comprises a cabinet body, electrical equipment is installed in the cabinet body, and a monitoring assembly is arranged on the cabinet body; the monitoring assembly comprises an air outlet formed in the cabinet body, an exhaust block matched with the air outlet is arranged on the cabinet body, a first exhaust opening is formed in the exhaust block, and a monitoring lamp is installed on the side wall of the first exhaust opening. According to the scheme, by arranging the light sensor, when a fire occurs, airflow can drive smoke to pass through the first exhaust port, when the smoke passes through the first exhaust port, the smoke can influence the monitoring lamp to irradiate the light sensor, and at the moment, the light sensor is triggered and controls the electromagnetic injection valve to be opened; and then dry powder in the fire extinguishing box is sprayed into the cabinet body through the electromagnetic spraying valve, so that fire extinguishing can be performed on electrical equipment in the cabinet body, fire spreading, serious economic loss and influence on body health of users are avoided, and the effect of improving the safety of the power distribution cabinet is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of distribution cabinets, and more specifically, to an intelligent distribution cabinet and a monitoring method thereof. Background Art

[0002] An intelligent distribution cabinet is a terminal device of an intelligent power distribution system that assembles switchgear, measuring instruments, protective electrical appliances, and auxiliary equipment in a closed or semi-closed metal cabinet or on a screen according to electrical wiring requirements, and is then combined with intelligent management equipment and programs.

[0003] Since there are many electrical components in high-voltage distribution cabinets, most of the existing high-voltage distribution cabinets are provided with heat dissipation devices. Currently, the commonly used heat dissipation devices are to install heat dissipation windows or heat dissipation fans on high-voltage distribution cabinets. However, the ventilation areas of the existing heat dissipation windows are all fixed, and due to the need to consider dust and water protection, the internal flow guide plates of the heat dissipation windows are usually set at a certain inclination angle. However, when the temperature inside the high-voltage distribution cabinet is too high, it is often necessary to quickly discharge the heat outward. The ventilation area of the existing heat dissipation windows cannot be automatically adjusted, and the degree of intelligence is low, which will affect the rapid heat dissipation of the high-voltage distribution cabinet. If the distribution cabinet cannot dissipate heat quickly, the electrical equipment inside the distribution cabinet is prone to high-load operation, which is prone to fire, affecting the economic property safety of the users.

[0004] In response to the above problems, some solutions have also been given in the prior art. For example, the Chinese invention patent with the publication number CN118554303A discloses an intelligent high-voltage distribution cabinet. The device cooperates with a side ventilation window, a front ventilation window, a louver linkage mechanism, a temperature sensor, a controller, and a heat dissipation fan. When the temperature inside the cabinet rises and triggers the heat dissipation fan to start, under the control of the controller, the servo motor drives the flow guide plates on the lower side ventilation window and the front ventilation window to rotate through the louver linkage mechanism, so that the opening of the ventilation window becomes larger, increasing the air intake volume of the cabinet body and improving the heat dissipation effect of the high-voltage distribution cabinet. When the temperature inside the cabinet returns to the normal value, under the control of the servo motor, the openings of the side ventilation window and the front ventilation window become smaller, reducing the air intake volume of the cabinet body (this can have a better water and dust blocking effect while maintaining heat dissipation normally) to achieve intelligent regulation, thereby improving the heat dissipation effect of the distribution cabinet. Although the prior art can improve the heat dissipation effect of the distribution cabinet, most distribution cabinets are exposed outdoors. In the hot summer, direct sunlight on the distribution cabinet easily causes the temperature of the distribution cabinet to rise rapidly. And with the use of the distribution cabinet, the electrical equipment and heat dissipation components inside the distribution cabinet will gradually age, which is prone to cause a fire in the distribution cabinet. However, the existing distribution cabinets cannot detect a fire in time and extinguish it. And if an electrical fire cannot be quickly extinguished, when the fire develops, it will not only easily cause serious losses, but also bring great difficulties to fire extinguishing, thus seriously affecting the safety of the distribution cabinet. Summary of the Invention

[0005] Aiming at the problems existing in the prior art, the purpose of the present invention is to provide an intelligent power distribution cabinet and its monitoring method, which can achieve the purpose of improving the safety of the power distribution cabinet.

[0006] To solve the above problems, the present invention adopts the following technical solutions.

[0007] An intelligent power distribution cabinet, including a cabinet body, in which electrical equipment is installed, and a monitoring component is provided on the cabinet body;

[0008] The monitoring component includes an air outlet opened on the cabinet body, and an exhaust block is provided on the cabinet body and is matched with the air outlet. A first exhaust port is opened on the exhaust block, and a monitoring lamp is installed on the side wall of the first exhaust port. A light sensor is provided on the side wall of the first exhaust port. A dry powder fire extinguishing box is installed on the inner top wall of the cabinet body. An electromagnetic injection valve is installed on the bottom wall of the fire extinguishing box, and the electromagnetic injection valve is electrically connected to the light sensor. An air inlet is opened on the cabinet body, a filter screen is installed in the air inlet, and a motor is installed on the cabinet body. A fan blade matched with the air inlet is fixedly installed on the output end of the motor. A linkage component matched with the light sensor is provided on the exhaust block.

[0009] Further, the linkage component includes a second exhaust port opened on the exhaust block, a first filter plate is installed on the first exhaust port, a second filter plate is installed on the second exhaust port, a sliding groove is opened on the inner side wall of the cabinet body, and a blocking plate for blocking the second exhaust port is slidably installed in the sliding groove. An elastic pad is installed between the blocking plate and the cabinet body of the housing, and a driving component matched with the blocking plate is provided on the housing.

[0010] Further, the driving component includes a heat conducting rod fixedly installed on the inner wall of the housing, and the end of the heat conducting plate away from the housing is in fixed contact with the electrical appliance. A shape memory alloy wire fixedly connected to the heat conducting rod is installed on the housing, and a connecting rope fixedly connected to the blocking plate is installed at the end of the shape memory alloy wire away from the heat conducting rod.

[0011] Further, a pneumatic telescopic rod is installed on the exhaust block, a cleaning plate is fixedly installed on the output end of the pneumatic telescopic rod, a push rod is fixedly installed on the side wall of the cleaning plate, and brush hairs for cleaning the second filter plate are uniformly fixedly installed on the cleaning plate.

[0012] Further, a cleaning port is opened on the side wall of the second exhaust port, a sealing plate is hinged in the cleaning port, a return spring is installed between the sealing plate and the cabinet body of the exhaust block, a cavity is opened on the elastic pad, and an air pipe communicated with the pneumatic telescopic rod is inserted into the cavity.

[0013] Furthermore, a mounting block is fixedly mounted on the exhaust block, an electromagnet electrically connected to the electrical appliance is embedded on the mounting block, and a baffle is slidably mounted on the exhaust block, a first spring is commonly installed between the baffle and the mounting block, and a magnet block is embedded on the baffle.

[0014] Furthermore, a rotating rod cooperating with the connecting rope is rotatably mounted on the cabinet body.

[0015] A monitoring method comprises the following steps:

[0016] S1: The fan blades drive the external air flow into the cabinet through the air inlet, and then the air is discharged through the air outlet and the first exhaust port, thereby dissipating heat to the electrical appliances in the cabinet;

[0017] S2: When the temperature of the electrical appliances inside the cabinet is too high, the memory alloy wire stretches due to the heat. At this time, the elastic pad drives the blocking plate to separate from the air outlet. At this time, part of the air flow can flow to the outside through the second exhaust port, and then the light sensor can monitor the smoke in the air flow;

[0018] S3: When a fire occurs due to high load on the electrical appliance, the airflow drives the smoke through the light sensor, and then the light sensor controls the electromagnetic injection valve to open. At this time, the dry powder in the fire extinguisher box is quickly sprayed into the cabinet.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] (1) This solution sets a light sensor. When a fire occurs, the airflow will drive the smoke through the first exhaust port. When the smoke passes through the first exhaust port, the smoke will affect the monitoring light to illuminate the light sensor. At this time, the light sensor is triggered and controls the electromagnetic injection valve to open. Then, the dry powder in the fire extinguisher box is sprayed into the cabinet through the electromagnetic injection valve, thereby extinguishing the fire of the electrical equipment in the cabinet, thereby preventing the fire from spreading, causing serious economic losses and affecting the health of users, and playing a role in improving the safety of the distribution cabinet.

[0021] (2) This solution sets a memory alloy wire. When the temperature of the electrical equipment is too high, the heat conducting rod transfers heat to the memory alloy wire and causes the memory alloy wire to stretch. At this time, the elastic pad contracts and drives the blocking plate to disengage from the first exhaust port. At this time, the airflow in the cabinet can flow normally to the first exhaust port. Then, the light sensor in the first exhaust port can monitor the smoke and dust in the airflow. When the electrical equipment is turned off, the temperature of the electrical equipment gradually decreases. At this time, the memory alloy wire gradually contracts. Then, during the contraction of the memory alloy wire, the blocking plate is driven to slide along the slide groove through the connecting rope and the first exhaust port is blocked again, thereby improving the accuracy of fire extinguishing.

[0022] (3) In this solution, by setting up a cleaning plate, when the elastic pad contracts and drives the plugging plate to disengage from the first exhaust port, the air flow in the cavity above the elastic pad flows through the trachea into the pneumatic telescopic rod, causing the output end of the pneumatic telescopic rod to extend. Then, during the extension process of the output end of the pneumatic telescopic rod, the cleaning plate is driven to move, and during the movement of the cleaning plate, the brush hairs are driven to move and clean the dust on the second filter screen, thus avoiding the blockage of the second filter screen and affecting the heat dissipation effect, and further improving the safety of the power distribution cabinet;

[0023] (4) In this solution, by setting up a cleaning port, during the process of the cleaning plate driving the brush hairs to clean the second filter plate, the cleaning plate drives the push rod to move, and during the movement of the push rod, it gradually contacts the sealing plate and applies a thrust to the sealing plate. Then, under the action of the thrust, the sealing plate rotates around the hinge point, and at this time, the reset spring starts to store energy. During the rotation of the sealing plate, the cleaning port gradually opens, and at this time, the dust on the second filter plate can flow to the outside through the cleaning port, thus avoiding the dust entering the first exhaust port and affecting the accuracy of the light sensor, and further improving the safety of the power distribution cabinet.

[0024] (5) In this solution, by setting up a baffle plate, when the electrical equipment stops working, at this time the electrical equipment stops working, there is no need for heat dissipation, and there will be no phenomenon of high-temperature overload. Then the electromagnet is powered off, and the electromagnetic field disappears. At this time, the first spring extends and drives the baffle plate to move downward, and during the downward movement of the baffle plate, it gradually plugs the first exhaust port, thus avoiding the outside moisture from entering the first exhaust port through the first filter plate and adhering to the surface of the light sensor, affecting the accuracy of the light sensor, and further improving the safety of the power distribution cabinet. Description of the Drawings

[0025] Figure 1 is the structural schematic diagram of the present invention;

[0026] Figure 2 is the cross-sectional view of the present invention;

[0027] Figure 3 is the top cross-sectional view of the cabinet body, exhaust block, and elastic pad of the present invention;

[0028] Figure 4 is the present invention Figure 3 the enlarged view at A in;

[0029] Figure 5 is the present invention Figure 3 the enlarged view at B in;

[0030] Figure 6 is the combined diagram of the pneumatic telescopic rod and the trachea of the present invention;

[0031] Figure 7 is the combined diagram of the sealing plate and the reset spring of the present invention;

[0032] Figure 8 This is a side cross-sectional view of the mounting block and baffle of the present invention.

[0033] Explanation of the reference numerals in the figure:

[0034] 1, cabinet; 2, electrical equipment;

[0035] 3, monitoring component; 301, exhaust block; 302, first exhaust port; 303, monitoring lamp; 304, light sensor; 305, fire extinguisher box; 306, electromagnetic injection valve; 307, filter screen; 308, motor; 309, fan blade;

[0036] 4, linkage component; 401, second exhaust port; 402, first filter plate; 403, second filter plate; 404, elastic pad; 405, plugging plate;

[0037] 5, drive component; 501, heat conducting rod; 502, shape memory alloy wire; 503, connecting rope;

[0038] 601, pneumatic telescopic rod; 602, cleaning plate; 603, push rod; 604, brush bristles;

[0039] 702, sealing plate; 703, return spring; 704, cavity; 705, air pipe;

[0040] 801, mounting block; 802, electromagnet; 803, baffle; 804, first spring; 805, magnet block; 9, rotating rod. Detailed implementation manners

[0041] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0042] Please refer to Figures 1 to 8 , an intelligent power distribution cabinet, including a cabinet body 1, an electrical equipment 2 is installed in the cabinet body 1, and a monitoring component 3 is provided on the cabinet body 1;

[0043] The monitoring component 3 includes an air outlet opened on the cabinet body 1, and an exhaust block 301 is provided on the cabinet body 1 and is matched with the air outlet. A first exhaust port 302 is opened on the exhaust block 301, and a monitoring lamp 303 is installed on the side wall of the first exhaust port 302. A light sensor 304 is provided on the side wall of the first exhaust port 302. A dry powder fire extinguishing box 305 is installed on the inner top wall of the cabinet body 1. An electromagnetic injection valve 306 is installed on the bottom wall of the fire extinguishing box 305, and the electromagnetic injection valve 306 is electrically connected to the light sensor 304. An air inlet is opened on the cabinet body 1, a filter screen 307 is installed in the air inlet, and a motor 308 is installed on the cabinet body 1. A fan blade 309 matched with the air inlet is fixedly installed on the output end of the motor 308. A linkage component 4 matched with the light sensor 304 is provided on the exhaust block 301.

[0044] During use, the motor 308 drives the fan blade 309 to rotate. Then, during the rotation of the fan blade 309, air flow can enter the cabinet body 1 through the filter screen 307 and be discharged through the air outlet on the cabinet body 1. And during the process of the air flow passing through the cabinet body 1, it can drive the heat of the electrical equipment 2 in the cabinet body 1 to flow outside the cabinet body 1, thereby realizing the cooling of the electrical equipment 2 and reducing the possibility of fire occurrence. And when a fire occurs, the air flow will drive the smoke and dust to pass through the first exhaust port 302. And when the smoke and dust pass through the first exhaust port 302, the smoke and dust will affect the monitoring lamp 303 from irradiating the light sensor 304. At this time, the light sensor 304 is triggered and controls the electromagnetic injection valve 306 to open. Then, the dry powder in the fire extinguishing box 305 is injected into the cabinet body 1 through the electromagnetic injection valve 306, so as to extinguish the electrical equipment 2 in the cabinet body 1, and further avoid the spread of the fire, causing serious economic losses and affecting the health of the users, playing a role in improving the safety of the power distribution cabinet.

[0045] As Figure 3 、 Figure 4 As shown in the figure, the linkage component 4 includes a second exhaust port 401 opened on the exhaust block 301. A first filter plate 402 is installed on the first exhaust port 302. A second filter plate 40 is installed on the second exhaust port 401. A sliding groove is opened on the inner side wall of the cabinet body 1. A plugging plate 405 for plugging the second exhaust port 401 is slidably installed in the sliding groove, and an elastic pad 404 is installed between the plugging plate 405 and the cabinet body 1. A driving component 5 matched with the plugging plate 405 is provided on the cabinet body 1.

[0046] The driving component 5 includes a heat conducting rod 501 fixedly installed on the inner wall of the cabinet body 1, and the end of the heat conducting plate away from the cabinet body is fixedly in contact with the electrical appliance. A shape memory alloy wire 502 fixedly connected to the heat conducting rod 501 is installed on the cabinet body 1, and a connecting rope 503 fixedly connected to the plugging plate 405 is installed at the end of the shape memory alloy wire 502 away from the heat conducting rod 501.

[0047] By adopting the above technical solution, in the initial state, the elastic pad 404 is in a stretched state. When the electrical equipment 2 starts to be used for the first time, the temperature of the electrical equipment 2 is relatively low. At this time, as the user opens and closes the cabinet door on the cabinet body 1, external dust will enter the cabinet body 1. At this time, the plugging plate 405 plugs the first exhaust port 302, thereby preventing dust from passing through the light sensor 304 and causing the light sensor 304 to be triggered. Then, when the temperature of the electrical equipment 2 is too high, the heat conducting rod 501 transfers heat to the shape memory alloy wire 502, causing the shape memory alloy wire 502 to extend. At this time, the elastic pad 404 contracts and drives the plugging plate 405 to disengage from the first exhaust port 302. At this time, the air flow in the cabinet body 1 can flow normally to the first exhaust port 302. Then, the light sensor 304 in the first exhaust port 302 can monitor the soot in the air flow. When the electrical equipment 2 is turned off, the temperature of the electrical equipment 2 gradually decreases. At this time, the shape memory alloy wire 502 gradually contracts. Then, during the contraction of the shape memory alloy wire 502, the plugging plate 405 is driven along the sliding groove through the connecting rope 503 and plugs the first exhaust port 302 again, achieving the purpose of improving the fire extinguishing accuracy.

[0048] As Figure 3 、 Figure 4 、 Figure 5 shown, a pneumatic telescopic rod 601 is installed on the exhaust block 301, and a cleaning plate 602 is fixedly installed at the output end of the pneumatic telescopic rod 601. A push rod 603 is fixedly installed on the side wall of the cleaning plate 602, and brush hairs 604 for cleaning the second filter plate 403 are uniformly fixedly installed on the cleaning plate 602.

[0049] A cleaning port is opened on the side wall of the second exhaust port 401. A sealing plate 702 is hinged in the cleaning port. A return spring 703 is installed between the sealing plate 702 and the exhaust block 301 inside the cabinet body 1. A cavity 704 is opened on the elastic pad 404, and an air pipe 705 communicating with the pneumatic telescopic rod 601 is inserted into the cavity 704.

[0050] By adopting the above technical solution, when the blocking plate 405 blocks the first exhaust port 302, the air flow can only flow to the outside through the second exhaust port 401. At this time, the second filter plate 403 can filter the dust in the air flow. Then, when the elastic pad 404 contracts and drives the blocking plate 405 to separate from the first exhaust port 302, the air flow in the cavity 704 above the elastic pad 404 flows through the air pipe 705 into the pneumatic telescopic rod 601, causing the output end of the pneumatic telescopic rod 601 to extend. Then, during the extension process of the output end of the pneumatic telescopic rod 601, the cleaning plate 602 is driven to move, and during the movement of the cleaning plate 602, the brush bristles 604 are driven to move to clean the dust on the second filter screen 307, thus avoiding the blockage of the second filter screen 307 and affecting the heat dissipation effect, and further improving the safety of the power distribution cabinet.

[0051] During the process of the cleaning plate 602 driving the brush bristles 604 to clean the second filter plate 403, the cleaning plate 602 drives the push rod 603 to move. During the movement of the push rod 603, it gradually contacts the sealing plate 702 and applies a thrust to the sealing plate 702. Then, under the action of the thrust, the sealing plate 702 rotates around the hinge point. At this time, the return spring 703 starts to store energy. During the rotation of the sealing plate 702, the cleaning port gradually opens. At this time, the dust on the second filter plate 403 can flow to the outside through the cleaning port, thus avoiding the dust entering the first exhaust port 302 and affecting the accuracy of the light sensor 304, and further improving the safety of the power distribution cabinet.

[0052] When the shape memory alloy wire 502 drives the blocking plate 405 to move through the connecting rope 503, the blocking plate 405 stretches the elastic pad 404. Then, during the stretching process of the elastic pad 404, the cavity 704 sucks air from the pneumatic telescopic rod 601 through the air pipe 705. At this time, the output end of the pneumatic telescopic rod 601 contracts and drives the cleaning plate 602 to reset, playing a role in preparing for the next operation.

[0053] As Figure 8 shown, an installation block 801 is fixedly installed on the exhaust block 301. An electromagnet 802 electrically connected to the electrical appliance is embedded in the installation block 801. A baffle 803 is slidably installed on the exhaust block 301. A first spring 804 is jointly installed between the baffle 803 and the installation block 801. A magnet block 805 is embedded in the baffle 803.

[0054] By adopting the above technical solution, when the electrical device 2 is working, the electromagnet 802 is energized to generate an electromagnetic field. Then, under the action of the electromagnetic field, the magnet block 805 drives the baffle 803 to move upward and disengages from the first exhaust port 302. At this time, the air flow can pass through the first exhaust port 302 normally. Then, when the electrical device 2 stops working, at this time the electrical device 2 stops working, there is no need for heat dissipation, and there will be no phenomenon of high-temperature overload. Then the electromagnet 802 is de-energized, and the electromagnetic field disappears. At this time, the first spring 804 extends and drives the baffle 803 to move downward, and during the downward movement of the baffle 803, the first exhaust port 302 is gradually blocked, thereby preventing external moisture from entering the first exhaust port 302 through the first filter plate 402 and adhering to the surface of the light sensor 304, affecting the accuracy of the light sensor 304, and further improving the safety of the power distribution cabinet.

[0055] As Figure 4 shown, a rotating rod 9 cooperating with the connecting rope 503 is rotatably installed on the cabinet body 1.

[0056] By adopting the above technical solution, when the shape memory alloy wire 502 pulls the blocking plate 405 through the connecting rope 503, by arranging the rotating rod 9, the sliding friction received by the connecting rope 503 can be converted into rolling friction, thereby reducing the resistance when the connecting rope 503 moves, and thus ensuring the normal blocking effect of the blocking plate 405 on the first exhaust port 302.

[0057] A monitoring method includes the following steps:

[0058] S1: The fan blade 309 drives the external air flow to flow into the cabinet body 1 through the air inlet, and then the air flow is discharged through the air outlet and the first exhaust port 302, so as to dissipate heat from the electrical appliances in the cabinet body 1;

[0059] S2: When the temperature of the electrical appliances in the cabinet body 1 is too high, the shape memory alloy wire 502 is heated and extends. At this time, the elastic pad 404 drives the blocking plate 405 to disengage from the air outlet. At this time, part of the air flow can flow to the outside through the second exhaust port 401, and then the light sensor 304 can monitor the smoke in the air flow;

[0060] S3: When a fire occurs due to high load of the electrical appliances, the air flow drives the smoke to pass through the light sensor 304, and then the light sensor 304 controls the electromagnetic injection valve 306 to open. At this time, the dry powder in the fire extinguishing box 305 is quickly sprayed into the cabinet body 1.

[0061] The above is only the preferred specific implementation manner of the present invention; however, the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its improved concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. An intelligent power distribution cabinet, comprising a cabinet body (1), an electrical device (2) is installed inside the cabinet body (1), and a monitoring component (3) is provided on the cabinet body (1); It is characterized in that: The monitoring component (3) includes an air outlet opened on the cabinet body (1), and an exhaust block (301) is provided on the cabinet body (1) and is matched with the air outlet. A first exhaust port (302) is opened on the exhaust block (301), and a monitoring lamp (303) is installed on the side wall of the first exhaust port (302). A light sensor (304) is provided on the side wall of the first exhaust port (302). A dry powder fire extinguishing box (305) is installed on the inner top wall of the cabinet body (1). An electromagnetic injection valve (306) is installed on the bottom wall of the fire extinguishing box (305), and the electromagnetic injection valve (306) is electrically connected to the light sensor (304). An air inlet is opened on the cabinet body (1), a filter screen (307) is installed in the air inlet, and a motor (308) is installed on the cabinet body (1). A fan blade (309) matched with the air inlet is fixedly installed on the output end of the motor (308). A linkage component (4) matched with the light sensor (304) is provided on the exhaust block (301).

2. The intelligent power distribution cabinet according to claim 1, characterized in that: The linkage component (4) includes a second exhaust port (401) opened on the exhaust block (301). A first filter plate (402) is installed on the first exhaust port (302). A second filter plate (403) is installed on the second exhaust port (401). A sliding groove is opened on the inner side wall of the cabinet body (1), and a blocking plate (405) for blocking the second exhaust port (401) is slidably installed in the sliding groove. An elastic pad (404) is installed between the blocking plate (405) and the cabinet body (1). A driving component (5) matched with the blocking plate (405) is provided on the cabinet body (1).

3. The intelligent power distribution cabinet according to claim 2, characterized in that: The driving component (5) includes a heat conducting rod (501) fixedly installed on the inner wall of the cabinet body. One end of the heat conducting plate away from the cabinet body is in fixed contact with the electrical appliance. A shape memory alloy wire (502) fixedly connected to the heat conducting rod (501) is installed on the cabinet body. A connecting rope (503) fixedly connected to the blocking plate (405) is installed at one end of the shape memory alloy wire (502) away from the heat conducting rod (501).

4. The intelligent power distribution cabinet according to claim 3, wherein: A pneumatic telescopic rod (601) is installed on the exhaust block (301). A cleaning plate (602) is fixedly installed on the output end of the pneumatic telescopic rod (601). A push rod (603) is fixedly installed on the side wall of the cleaning plate (602). Brush hairs (604) for cleaning the second filter plate (403) are uniformly fixedly installed on the cleaning plate (602).

5. An intelligent power distribution cabinet according to claim 4, characterized in that: A cleaning port is opened on the side wall of the second exhaust port (401). A sealing plate (702) is hinged in the cleaning port. A return spring (703) is installed between the sealing plate (702) and the cabinet body (1) of the exhaust block (301). A cavity (704) is opened on the elastic pad (404). An air pipe (705) communicated with the pneumatic telescopic rod (601) is inserted into the cavity (704).

6. The intelligent power distribution cabinet according to claim 5, characterized in that: A mounting block (801) is fixedly mounted on the exhaust block (301), an electromagnet (802) electrically connected to an electrical appliance is embedded in the mounting block (801), and a baffle (803) is slidably mounted on the exhaust block (301), a first spring (804) is commonly mounted between the baffle (803) and the mounting block (801), and a magnet block (805) is embedded in the baffle (803).

7. An intelligent power distribution cabinet according to claim 6, characterized in that: A rotating rod (9) that cooperates with the connecting rope (503) is rotatably mounted on the cabinet (1).

8. A monitoring method, implemented based on an intelligent monitoring type high and low voltage power distribution cabinet according to any one of claims 1-7, characterized in that, The steps include: S1: The fan blades (309) drive the external air flow into the cabinet (1) through the air inlet, and then the air flow is discharged through the air outlet and the first exhaust port (302), thereby dissipating heat for the electrical appliances in the cabinet (1); S2: When the temperature of the electrical appliance in the cabinet (1) is too high, the memory alloy wire (502) stretches due to the heat, and the elastic pad (404) drives the blocking plate (405) to break away from the air outlet. At this time, part of the air flow can flow to the outside through the second exhaust port (401), and then the light sensor (304) can monitor the smoke in the air flow; S3: When a fire occurs due to high load of electrical appliances, the airflow drives the smoke through the light sensor (304), and then the light sensor (304) controls the electromagnetic injection valve (306) to open, and at this time, the dry powder in the fire extinguishing box (305) is quickly sprayed into the cabinet (1).

Images